Almost any medication may cause hives or angioedema. Common culprits include penicillin, aspirin, ibuprofen (Advil, Motrin IB, others), naproxen (Aleve) and blood pressure medications. Common allergens. Other substances that can cause hives and angioedema include pollen, animal dander, latex and insect stings. Environmental factors. Examples include heat, cold, sunlight, water, pressure on the skin, emotional stress and exercise.
The color of Neptune is a bright azure blue. During its flyby in 1989, NASAâs Voyager 2 revealed the bright blue color, different from the pale blue color of Uranus. So why does Neptune have this color? The answer to Neptuneâs color comes from its cloud tops. The upper atmosphere of Neptune is made up [â¦]
Neptune's atmosphere is made from about 80% hydrogen and 19% helium. It also contains a small amount water and methane, which give rise to the green-bluish color. The dark blue and bright white features of the atmosphere help distinguish Neptune from Uranus. The thin cirrus-like white clouds contain methane ice. When hydrocarbon snowflakes form in Neptune's atmosphere they melt before reaching the surface because of the high pressure.